Thill-coupling



UNITED STATES PATENT FFICE.

JOSEPH E. WHIDDEN, OF WHITMAN, MASSACHUSETTS.

THlLL-COUPLING.

SPECIFICATION forming part of Letters Patent No. 543,166, dated July 23, 1895.

Y Application filed September 27, 1993. Serial No. 486,605. (No model.)

Y of which the following, taken in connection with the accompanying drawings, ication'.

My invention relates to devices for preventing the Vparts that constitute a thill-coupling is a specifrom rattling; and it consists in combining y. ss

with the ordinary axle clip, 'thill-iron, and pin au adjustable elastic pad, a pad-holder, and pin-lock.

The devices are illustrated in the accompanying drawings, in which- Figure 1 is a View showing a carriage-axle in cross vertical section and the thill-coupling in elevation. Fig. 2 is avertical section taken on line @c m of Fig.- 3. Fig. 3 is a section taken on line y y of Fig. 1. Fig. 4. is a View in perspective of one of my pad-holders, also showing a pad in position.Y Fig. 5 shows a thillcoupling pin and its locking-hasp.

In the drawings, A represents a carriage axle,B B a thill-coupling clip, and D a thill- IPOD..

The above-mentioned parts are made in the usual manner and need not be described in detail. The thill-iron D is attached to the lags B B of the clip by means of a pin H, as shown. This pin H is made in the usual manner,'ex cept. that it has at its end an annular groove H', Figs. 3 and 5, which serves,in connection with the hasp H2, to hold the pin H in place, as Will be explained hereinafter.

The leading feature of my invention is in connection with the pad-holder E. (Shown in perspective in Fig. 4.) This pad-holder E is so made that it can be easily fitted over the lags B B of the axle-clip' B, where it will be held by the pin H, which occupies a position in front of it, as shown in Fig. l. It is also held by the elastic pad P when the saine is expanded sidewise by the pressure of the cornpression-screw E. The pad P when in place is held at its top by the top plate of the holder Eand at either end by the lags B B', Fig. 3,

while its lower side rests upon the buttress- 5o plate P of the compression-screw E. The rear side of the pad rests against the clip B, as shown in Fig. 2, and the concaved front side rests against the rear end of the thilliron D.

To cause the pad P, which is made of rubber or some other elastic material, to rmly press against the end of the thill-iron and pre- Vent it from rattling, I have only to turn the screw E inward. This, acting through the buttress-plate P', will compress the pad P vertically and cause it to expand laterally-that is, press hard against the end of the thill-iron.

The hasp H2, Figs. 1 and 5, is made with an opening h h. The part h of the opening is made sufficiently large to sli p readily over the end ot' the pin H; but the part h is made small, so as to fit into the annular groove H on the pin H. The lower end of the hasp H2 has an elongated opening h2, which receives the screw H2, by which it may be made fast to theextension E2 of the pad-holder E, the

screw H3 engaging with the screw-threaded hole F.3 in the extension E2.

To apply my devices, I' remove the thills and then place the pad-holder, including the pad, in its place on the lags B B. Now replace the thills and insert the pins H, placing the hasp H2 so that the opening h will t the annular groove H and hold the pin H in place, and then insert the clamp-screw H3 and screw it firmly in place. This will hold the hasp, which in turn will keep the pin H in place.

While placing the devices the compressingscrew F. is turned out-that is, the rubber pad P is not compressed-but as soon as the act of placing is done the screw E is screwed in. This action expands the pad P laterally and holds the thill-iron so that it cannot rattle. At the same time the pad-holder will be forced downward to some extent, and thus tion of the pad P and pad holding frame E, name to this speoication, in the presence of having an extension E2 adapted to receive the two subscribing Witnesse, on this 25th day of clamp screw H3; with the clamp screw H3 hasp September, A. D. 1893. H2 and pin H having an annular groove H JOSEPH E. VVHIDDEN` 5 adapted to interlock With the said hasp H2 VVitneSses:

substan tially as and for the purpose set forth. FRANK G. PARKER,

In testimony whereof I have signed my FRANK G. HATTIE. 

